Cellulose ether, tshwj xeeb yog Hydroxypropyl Methylcellulose (HPMC), yog ib qho kev siv ntau ntxiv hauv cov masonry thiab plastering mortar. Nws cov khoom tshwj xeeb ua rau nws muaj qhov tseem ceeb hauv kev tsim kho kev lag luam. Hauv tsab xov xwm no, peb yuav tshawb txog lub luag haujlwm ntawm cellulose ether hauv kev txhim kho kev ua haujlwm thiab kev ua haujlwm ntawm mortar.
Lub luag haujlwm tseem ceeb ntawm cellulose ether hauv masonry thiab plastering mortar yog los txhim kho kev ua haujlwm. HPMC ua raws li tus neeg saib xyuas dej, kom ntseeg tau tias lub mortar tswj nws qhov sib xws thaum siv. Yog tsis muaj cellulose ether, qhov sib tov yuav qhuav sai, ua rau nws nyuaj rau cov neeg ua haujlwm sib kis thiab siv cov tshuaj khib kom sib npaug. HPMC pab txuas ntxiv lub sijhawm ua haujlwm ntawm cov tshuaj khib nyiab, tso cai rau kev ua tau zoo dua thiab txo qhov xav tau ntawm kev rov ua dua tshiab.
Lwm lub luag haujlwm tseem ceeb ntawm cellulose ether hauv mortar yog nws lub peev xwm los txhim kho lub zog ntawm daim ntawv cog lus. Thaum ntxiv rau qhov sib tov, HPMC tsim ib zaj duab xis nyias nyob ib ncig ntawm cov cement hais, uas txhim kho adhesion ntawm mortar thiab substrate. Cov yeeb yaj kiab no kuj tseem ua cov roj nplua nyeem, txo kev sib txhuam ntawm cov khoom, thiab tiv thaiv kev sib cais thaum thauj thiab siv. Kev txhim kho daim ntawv cog lus lub zog muab los ntawm cellulose ether ua kom cov khoom siv ruaj khov thiab ua haujlwm zoo dua.
Cellulose ether kuj pab txhawb rau tag nrho cov dej tsis kam ntawm masonry thiab plastering mortar. Lub xub ntiag ntawm HPMC pab tsim cov yeeb yaj kiab hydrophobic rau ntawm qhov chaw ntawm lub mortar, tiv thaiv dej nkag thiab kev puas tsuaj tom qab. Qhov kev tiv thaiv dej no yog qhov tseem ceeb tshwj xeeb tshaj yog nyob rau sab nrauv daim ntaub ntawv uas cov mortar raug rau huab cua hnyav. Los ntawm kev txo cov dej nqus dej, cellulose ether pab tiv thaiv cov kab nrib pleb, efflorescence, thiab lwm yam teeb meem ntsig txog dej noo, ua rau lub neej ntev dua rau kev tsim kho.
Cellulose ether plays lub luag haujlwm tseem ceeb hauv kev tswj cov shrinkage thiab cracking hauv mortar. Qhov sib ntxiv ntawm HPMC pab txo qhov ziab kom qhuav ntawm mortar, uas yog ib qho ua rau tawg. Los ntawm kev txo qis qis, cellulose ether xyuas kom meej tias cov khoom tiav tseem nyob twj ywm suab. Tsis tas li ntawd, qhov tawg tsis kam muab los ntawm HPMC txhawb kev ua kom zoo dua qub thiab zoo nkauj, tsis txhob xav tau kev kho kom zoo lossis rov ua dua lub sijhawm.
Nyob rau hauv xaus, cellulose ether, tshwj xeeb tshaj yog Hydroxypropyl Methylcellulose (HPMC), plays lub luag hauj lwm tseem ceeb hauv masonry thiab plastering mortar. Nws lub peev xwm los txhim kho kev ua haujlwm, txhim kho kev sib raug zoo, muab cov dej tsis kam, thiab kev tswj cov shrinkage ua rau nws muaj txiaj ntsig zoo hauv kev tsim kho kev lag luam. Nrog nws cov txiaj ntsig ntau, cellulose ether ua kom cov tshuaj khib nyiab yooj yim ua haujlwm nrog, ruaj khov dua, thiab siv tau ntev dua. Cov neeg tsim khoom thiab cov neeg cog lus tuaj yeem tso siab rau cellulose ether kom xa cov kev ua tau zoo tshaj plaws thiab ua tiav cov txiaj ntsig zoo hauv lawv cov masonry thiab plastering project.
Post lub sij hawm: Oct-31-2023